Pulmonary Function Measures

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Last updated 7:22 AM on 8/25/26
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5 Terms

1
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What is forced vital capacity (FVC)?

  • Volume expired during a forced maximal expiration

  • Performed after maximal inspiration


2
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What is forced expiratory volume (FEV)?

  • Maximum volume exhaled during specified time

  • Commonly measured:

    • FEV₁

    • FEV₂

    • FEV₃


3
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What is minute ventilation (VE)?

  • Air expired per minute

  • VE = TV × respiratory rate


4
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What is peak expiratory flow (PEF)?

Maximum airflow achieved during a forced expiratory maneuver

5
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What is anatomic dead-space volume (VD)?

  • Air occupying non-respiratory conducting airways

  • Does not participate directly in gas exchange